includes()
Description
Checks whether an element is in the selection list
Usage
includes({
id: string | number
}): boolean;
Parameters
The method takes as an argument an object with the following parameters:
id- (required) the id of the checked item
Returns
The method returns true if the element is in the selected list, otherwise false
Example
// a diagram must be created with the "select:true" option
const diagram = new dhx.Diagram("diagram_container", {
select: true
});
// loading data
diagram.data.parse(data);
diagram.selection.getIds(); // -> ["1", "2", "3"]
diagram.selection.includes({ id: "1" }) // returns true
diagram.selection.includes({ id: "4" }) // returns false
Change log: Added in v6.0
Related articles:
Related sample: Diagram. Selection. Item selection